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Monitoring Volcano Hazards in the Cascades of Washington and Oregon: Recent and Ongoing Network Diversification and Advances

Description: 

The U.S. Geological Survey’s Cascades Volcano Observatory (CVO) operates a geophysical network (CC) for monitoring hazards associated with the Cascades Volcanoes throughout Washington and Oregon. CVO’s monitoring goals are to detect and interpret geophysical and geochemical phenomena to provide the public with early and accurate warnings of volcanic unrest and eruptions. Nine of these volcanoes are classified as high- or very-high-threat by the National Volcano Early Warning System [Ewert and others, 2018] due to their eruptive history, types of hazards, and potential impact to populations and infrastructure. In coordination with the Pacific Northwest Seismic Network (PNSN) and support from the UNAVCO GAGE facility, CVO has significantly expanded its regional volcano monitoring network and monitoring capabilities by adding more than 66 stations over the last 20 years. The CVO regional network of real-time stations includes a broad spectrum of stand-alone and co-located monitoring instrumentation (seismic, infrasound, deformation, gas, and cameras) with metadata and continuous data shared publicly in near-real-time at IRIS (ds.iris.edu/mda/CC) and daily GNSS data and metadata available from UNAVCO (https://www.unavco.org/data/gps-gnss/gps-gnss.html). CVO is continuously designing and developing more reliable and robust station design and infrastructure capable of operating in extreme environments, while also focusing on expansion of the network to under-monitored volcanoes. This multiyear coordinated effort has improved CVO’s hazard detection ability and knowledge of individual volcanos background activity to better assess volcanic hazards in near-real time throughout Washington and Oregon.

Session: Network Seismology: Recent Developments, Challenges and Lessons Learned [Poster]

Type: Poster

Date: 4/20/2023

Presentation Time: 08:00 AM (local time)

Presenting Author: Amberlee P. Darold

Student Presenter: No

Invited Presentation: 

Authors